BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 117 
Solaster endeca. Amphioplus abdita. 
*Henricia sanguinolenta (chart 47). Gorgonocephalus agassizii. 
Asterias austera. *Strongylocentrotus droebachiensis (chart 51). 
*Asterias forbesi (chart 48). *Arbacia punctulata (chart 52). 
Asterias tenera. *Echinarachnius parma (chart 53). 
*Asterias vulgaris (chart 49). Cucumaria pulcherrima. 
Ophioderma brevispina. Thyone briareus. 
Ophiopholis aculeata. Thyone unisemita. 
*Amphipholis squamata (chart 50). Caudina arenata. 
Considering the 7 more prevalent species of local echinoderms, we may group 
them, as usual, according to their range upon our coast, as predominantly northern or 
southern. The distributions here stated are those given by Clark. 
Predominantly northern. 
Henricia sanguinolenta............. “Greenland and Labrador to Connecticut, off New Jersey and even 
Cape Hatteras.’’ 
ASGERHISIWIMEATIS.,.). o)doic) 02). 28 le “Labrador to Cape Hatteras; but south of the Woods Hole region 
rarely seen in shallow water.”’ 
Strongylocentrotus droebachiensis. . ‘‘Circumpolar; southward in the western Atlantic to New Jersey 
(not in shallow water south of Cape Cod).’’ 
Predominantly southern. 
IISPOR RAR MEIIESE Wo oc we 'ele oye sjgoiee s es “Maine to the Gulf of Mexico, rare or local north of Cape Ann.’’ 
Arhactaypunetulata. 02... eee “Nantucket Shoals and Woods Hole to West Florida and Yucatan.” 
Of uncertain position. 
Amphipholis squamata............ Arctic Ocean to West Indies and South America. (Australia; 
Mediterranean Sea.) 
Echinarachnius parma..............On our coast, from Labrador to New Jersey (also Red Sea). 
It is obvious that no fair opinion can be formed regarding the zoogeographical 
position of our local echinoderms from a consideration of these few species. According 
to Clark, 5 of the 6 true starfishes of the region are northern, though the Asteroidea 
are the only group which show this preponderance of northern forms. 
7. ANNULATA AND SIPUNCULIDA. 
ANNULATA. 
Of the Annulata proper 148 determined species are recorded, to which number 
must be added 4 undetermined species and a few others which are doubtfully to be 
included in this list. These species represent 109 genera and 40 families. Of the total 
number of species recorded, 83, or more than 50 per cent, were taken during our own 
dredging operations; 46 others are recorded for local waters on the authority of persons 
who have participated in the work of the Survey, while 30 species are included wholly 
on the authority of published statements. The great majority of the segmented worms 
here recorded belong to the subclass Polycheta, of which about 135 species have been 
listed for the region. In addition to these, however, are 11 species of Oligocheta and 
4 of the Hirudinea. 
Only a single new species (Arabella spinifera Moore) has been described from speci- 
mens taken during the Survey dredging. A number of species hitherto unrecorded 
locally have, however, been added to the known fauna of the region. Such are Myxicola 
steenstrupu, Pista intermedia, Polycirrus phosphoreus, Spiochetopterus oculatus, Spirorbis 
